Valve mechanism.



No. 780,116. PATENTED JAN. 17, 1905. J, n. MOEHN.

VALVE MECHANISM.

APPLIOA TIOH FILED D120. 28, 1903.

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Niirnn ramps Patented January 1'7, 1905.

ATENT' OFFICE.

VALVE lVIECHANl$lVL SPECIFICATION forming part of Letters Patent No. 780,116, dated January 1'7, 1905. Application filed December 28.1903. Serial No. 186,835.

To all whom it may concern:

Be it known that I, Jomv N. Momma, a citizen of the United States, residing at lVlilwaukee, county of Milwaukee, and State of lViscousin, have invented new and useful Improvements in Valve Mechanism, of which the following is a specification.

My invention relates to improvements in valve mechanism, with especial reference to the class of such mechanism used for operating carbureting apparatus by hydraulic power.

The object of my invention is to provide a mechanism which can be operated with little expenditure of power, so that it will not interfere with the pressure of the gas in the bell, but which will exert a comparatively high degree of pressure to shift the valve with a positive movement.

In the following description reference is had to the accompanying drawings, in which Figurel is a side elevation of my invention. Fig. 2 is a vertical sectional view of the valve-ports, valves, and the lower endv of the hydraulic jack. Fig. 3 is a detail view of the valve mechanism and a portion of the carbureting apparatus drawn at right angles to Fig. 1.

Like parts are identified by the same refer ence characters throughout the several views.

In the drawings, '1 represents a water-tank; 2, a gas-bell arranged to reciprocate vertically in the tank.

3 is a gas-inlet pipe, and 4 a service-pipe.

A hydraulic jack is used for elevating the bell, this being accomplished through the medium of piston 6 and rod 7 (Indicated by dotted lines in Fig. 1.) To operate the jack, water is admitted. thereto through the inletpipe 8 and discharged therefrom through the outlet-pipe 9, the admission and discharge of the water being controlled by valves 10 and 11, respectively, Fig. 2. The valve-stems 12 are connected to the bell-crank 13 and operated through the medium of an exterior lever 14 and a rock-shaft 15, on which the bellcrank is mounted.

The parts above described may all be of any ordinary construction.

To actuate the valves, a sealed tubular lever 20 is adjustably mounted in a block 21,

upper end of the valve-actuating lever 14L.

The bars 32 and 33 are adjustably secured to the bracket 30 by clamping-screws The tube 20 is partially lilled with liquid, preferably a liquid having a high specific gravity, such as quicksilver, whereby the lower end of the tube 20 will be weighted by theliquid flowing to that end of the tube when the latter is tilted upon the pivot-pin 23.

in Fig. 1 the parts are shown with the bell 2 at the beginning of its upward stroke, the inlet-valve 10 being open and water under pressure being admitted from the pipe 8 under the piston 6 of the jack to lift the bell. During the completion of its upward movement motion will be communicated from the bell through the medium of the arm 25, red 26, and chain 27 to lift the left-hand end of the tube 20, which tilts upon the pivot 23 until the liquid 37 is caused to flow to the righthand end, whereupon the weight of the liquid will additionally depress that end of the tube with. a positive movement, causing the bar 32 to engage and actuate the lever 14 and reverse the position of the valves, closing the inletvalve 10 and opening the outlet-valve 11 tor the discharge of the power-watcr from the jack. hen the gas-bell 2 has descended sufiiciently to cause the chain 27 to pull downwardly on the raised left-hand end of the tube 20, this end of the tube will be again depressed. by the chain until the liquid 37 flows into it and further depresses it and again reverses the position of the valves andadmits a further supply of power-water to the jack from the inlet-pipe 8. It will thus be observed. that the tube 20 acts as i a weighted lever for operating the valve, in which the weight is shifted from one end of such lever to the other through the medium of the gas-bell 2. The arms 32 and 33 are adjusted from time to time in accordance with the wear of the valves. Stop-arms 38 are used to relieve the pressure upon the valves, these arms being clamped to the tubular lever in such a position that one of them will contact with the jack simultaneously with each adjustment of the-valves. This relieves the valves from the shock of impact.

In referring to Fig. 3 it will be observed that the bracket is provided with two side bars, between which the lever 14 extends. The bars 32 and 33 serve as cross-bars of the bracket.

WVhile the invention is described as applied to a carbureting-machine, I do not limit the scope of my claims to such use, it being obvious that the same mechanism may be employed for a great variety of purposes.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination with a valve and valvelever; of a controlling-lever having a central pivotal support; a weight movable on said lever to opposite sides of the pivot; means for actuating the controlling-lever to shift said weight from one side of the pivot to the other, whereby the weight is made effective to cause a further movement of the lever; a segmental bracket connected with the controlling-lever and provided with projections arranged to engage the valve-lever during the final movement of the controlling-lever in either direction, said projections being adjustable on the bracket to regulate the stroke of the valvelever.

2. The combination with a valve and valvelever; of a controlling-lever having a central pivotal support; a weight movable on said lever to opposite sides of the pivot; means for actuating the controlling-lever to shift said weight from one side of the pivot to the other, whereby the weight is made effective to cause a further movement of the lever; a bracket, connected with the controlling-lever and provided with projections arranged to engage the valve-lever during the final movement of the controlling-lever in either direction; said projections being adjustable on the bracket to regulate the stroke of the valve-lever and said controlling-lever being provided with adjustable stops to limit its movement in either direction.

In testimony whereof I aifiX my signature in the presence of two witnesses.

JOHN N. MOEHN.

\Vitnesses:

LEVERETT C. WVHEELER, JAS. B. ERWIN. 

